HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 572
HD6417660
Manufacturer Part Number
HD6417660
Description
Renesas 32-Bit RISC Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417660.pdf
(846 pages)
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19.3.18 HcLSThreshold Register (HLSTR)
HLSTR includes an 12-bit value that is used by the host controller to determine whether or not to
authorize the transfer of the LS packed 8 bytes in maximum before EOF. The host controller and
host controller driver cannot change this value.
Rev. 1.00, 02/04, page 534 of 804
Bit
31 to 12 —
11
10
9
8
7
6
5
4
3
2
1
0
Bit Name
LST11
LST10
LST9
LST8
LST7
LST6
LST5
LST4
LST3
LST2
LST1
LST0
Initial
Value
All 0
0
1
1
0
0
0
1
0
1
0
0
0
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved
These bits are always read as 0. The write value should
always be 0. The operation is not guaranteed if 1 is
written to these bits.
LSThreshold
This field contains a value to be compared with the FR
bits prior to the beginning of low-speed transaction.
The transaction is started only when the FR bit value is
beyond the value of this bit. The value is calculated by
the host controller driver considering the transmission
and set-up overhead.
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